ShouldCollide hook not working?

[User125]

I've been trying to use ShouldCollide but for some reason it isn't working

Here's my code:
hook.Add("PlayerSpawnedProp", "SetPropOwner", function(ply, mdl, ent)
if not IsValid(ent.PropOwner) then
ent.PropOwner = ply:Nick()
ent:SetCustomCollisionCheck(true)
end
end)

hook.Add("ShouldCollide", "RemovePropCollision", function(ent1, ent2)
if IsValid(ent1.PropOwner) and IsValid(ent2.PropOwner) then
if not ent1.PropOwner == ent2.PropOwner then return false end
end
end)

The hook ShouldCollide isn't getting called, how do I fix this?

[bigdogmat]

You're storing the player name when you should just use the player object.